[PATCH 6.12 801/826] smb: client: disable directory caching when dir_cache_timeout is zero

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6.12-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Henrique Carvalho <henrique.carvalho@xxxxxxxx>

[ Upstream commit ceaf1451990e3ea7fb50aebb5a149f57945f6e9f ]

Setting dir_cache_timeout to zero should disable the caching of
directory contents. Currently, even when dir_cache_timeout is zero,
some caching related functions are still invoked, which is unintended
behavior.

Fix the issue by setting tcon->nohandlecache to true when
dir_cache_timeout is zero, ensuring that directory handle caching
is properly disabled.

Fixes: 238b351d0935 ("smb3: allow controlling length of time directory entries are cached with dir leases")
Reviewed-by: Paulo Alcantara (Red Hat) <pc@xxxxxxxxxxxxx>
Reviewed-by: Enzo Matsumiya <ematsumiya@xxxxxxx>
Signed-off-by: Henrique Carvalho <henrique.carvalho@xxxxxxxx>
Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 fs/smb/client/connect.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/smb/client/connect.c b/fs/smb/client/connect.c
index fa07708f2e320..a94c538ff8636 100644
--- a/fs/smb/client/connect.c
+++ b/fs/smb/client/connect.c
@@ -2594,7 +2594,7 @@ cifs_get_tcon(struct cifs_ses *ses, struct smb3_fs_context *ctx)
 
 	if (ses->server->dialect >= SMB20_PROT_ID &&
 	    (ses->server->capabilities & SMB2_GLOBAL_CAP_DIRECTORY_LEASING))
-		nohandlecache = ctx->nohandlecache;
+		nohandlecache = ctx->nohandlecache || !dir_cache_timeout;
 	else
 		nohandlecache = true;
 	tcon = tcon_info_alloc(!nohandlecache, netfs_trace_tcon_ref_new);
-- 
2.43.0







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